991170114 has 16 divisors (see below), whose sum is σ = 2162553120. Its totient is φ = 300354560.

The previous prime is 991170113. The next prime is 991170137. The reversal of 991170114 is 411071199.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (991170113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7508799 + ... + 7508930.

It is an arithmetic number, because the mean of its divisors is an integer number (135159570).

Almost surely, 2^991170114 is an apocalyptic number.

991170114 is an abundant number, since it is smaller than the sum of its proper divisors (1171383006).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

991170114 is a wasteful number, since it uses less digits than its factorization.

991170114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15017745.

The product of its (nonzero) digits is 2268, while the sum is 33.

The square root of 991170114 is about 31482.8542861031. The cubic root of 991170114 is about 997.0479989312.

The spelling of 991170114 in words is "nine hundred ninety-one million, one hundred seventy thousand, one hundred fourteen".